Improvement in malt-kilns



WITNESSES. I

J. G. WHITE.

Malt Dryer.

I Patented Feb; 22,0870

NJETERS, PHDTO-LITMOGRAFHER. WASHXNGTON u C I Z ZZ%% I:

taint sale A ,atent (time.

JOHN G. WHITE, OF ALBANY, NEW YORK.

Letters Patent No. 100,091, dated February 22, 187 0; antetlated February 17, 1870.

IMPROVEMENT IN MALT-KILNS.

The Schedule referred to in these Letters Patent and making part of the same.

To allaclwm. it may concern Be it known that I,J01'1N G. WHITE, of Albany, in

the county of Albany, and State of New York have' invented certain new and useful Improvements in Malt- ;Kiln Heaters; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being bad to the accompanying drawings forming a part of this specification, and to the letters of reference marked thereon, in which- Figure 1 is a front elevation of my invention.

.l igure 2 is a central vertical section from side to side. i

Figure 3 is a central vertical section, taken on a plane at right angles to fig. 2.

Similar letters of reference indicate like parts in all the figures. The nature of my invention consists in the construction of a base-burning heater, to be used in combination with a malt-kiln, so as to be able to produce a more uniform degree of temperature in the kiln; also to require less care from the attendant during the night; also in the construction of a perforated wall for the combustion-chamber, by means ofwhich fresh air is admitted to be heated and carried up to the kiln or series of kilns, which are built above the heater in any of the well-known and usual methods.

. The two side and rear walls of my improved heater are constructed of bricks-or masonry, the front being constructed of sheet-iron, on other suitable metal.

Its shape may be as follows: A square base, with perpendicular walls, and its top arched, as may be seen on reference to figs. l, .2, and 3.

At the top of the arch, and near the rear wall, I construct a flue, F, as shown in fig. 3, leading to the kiln in the usual manner.

The gear wall of the heater may be arched in toward the flue F, as shown in the same figure, for the purpose of directing the heated air from the combustionchamber 0 more readily into flue 1*- At any suitable distance from the bottom of the heater, 1 place two iron bars, I) 1), extending across from one side of the heater to the other; and upon these bars, and at right angles to them, I place two other bars, 0 c, as shown in figs. 1, 2, and 3.

Upon the top of bars 0 c I place an iron bed-plate, m, having an aperture in its center for the grate a, which is attached to it in the well-known and usual manner.

Upon the bed-plate m I place the fire-pot 'n, which may be of iron, and lined with fire-brick, 0, on its inside, and the space I, outside of it, and between it and the inner walls of the heater, may be filled in with oidinary mason work, which forms the bottom of the combustion and air-heating chamber 0, as shown in figs. 2 and 3.

Above the fire-pot n, I suspend upon bars 8, placed near the top of the combustion-chamber (3, the reservoir or coal-supply cylinder D, having its chute of feed-conduit E projecting through the front plate K of the heater, as shown in figs. 1 and 3.

At any convenient distance above the top of the arch, and within flue P, is placed a damper, G, with its rod 11, as shown in figs. 1, 2, and 3. By means of said damper G, the amount of heat passing to the kiln is regulateth f The front wall of the heater is constructed of sheetiron, and from the bottom of the arch upward it is imperforate, excepting where the chute E passes through it. I

The front plate II, extending from the bottom of the arch down to the level of the bottom of the combustion-chamber O, or the top of the fire-pot 11,1 construct of perforate metal, the pcrtbrations d (1 shown in fig. 3 completely covering the front of the combustion-chamber, shown in fig. 1. Said perforate plate H may have doors in it, as shown-in fig. 1.

Having described my invention, and its mode of construction, it will readily be seen that its mode of operation will beas follows:

The fire having been kindled in the usual manner in base-burners, and the reservoir 1) filled through chute E, the combustion of the fuel will fill the chamber O with heated air, which will pass rapidly upward through flue F to the kiln or series of kilns usually placed in the upper stories of the malt-house. It will further be seen that, while the fuel will be supplied with oxygen for combustion from the air passing through the ash-pit A, and thence through the grate into the fire, at the same time cold air is admitted through the perforated front H, by its apertures dd, as shown by arrows ff, in fig. 3, into the'combustionchamber 0, where it is heated and carried upward into flue F. 'Anincreased quantity of cold air may be admitted, whenever desired, by means of doors X X X, shown in fig. 1.

By my improved construction of heaters, a perfect] reliable and uniform current of heat may be conducted to the kiln, and during the night the heater will require uo'attention from an attendant,

\Vhat I claim as new, and desire to secure by Letters Patent, is

1. The construction of the front wall or plate H of the combust-ioil-chamber of a base-burning heater for malt-kilns with perforations, (Z cl, substantially as herein shown, and for the purpose set forth.

2. The combination of a base-burning heater with flue F, substantially as. and for the purpose herein shown and described.

3. The mode of heating air for the kilns, bypassing the same into the combustion-chamber G, substantially as herein shown and described. v

JOHN G. 'WHITE.

Witnesses:

ANDREW G. WHITE, STEPHEN WALnRoN; 

